81211-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81211-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,1 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81211-72:
(7*8)+(6*1)+(5*2)+(4*1)+(3*1)+(2*7)+(1*2)=95
95 % 10 = 5
So 81211-72-5 is a valid CAS Registry Number.
81211-72-5Relevant academic research and scientific papers
Synthesis of Simple Monocyclic 1,3-Diazepines from 1,2-Diazepines
Tsuchiya, Takashi,Kurita, Jyoji,Kojima, Hirokazu
, p. 444 - 445 (2007/10/02)
Thermolysis of the 1H-1,2-diazepines having an electron-donating substituent in the 4- or 6-position affords the corresponding 1,3-diazepines, whereas 1,2-diazepines having electron-withdrawing substituents do not show this ring-conversion.
